1229 lines
42 KiB
C
1229 lines
42 KiB
C
|
|
/* flexdef - definitions file for flex */
|
|
|
|
/* Copyright (c) 1990 The Regents of the University of California. */
|
|
/* All rights reserved. */
|
|
|
|
/* This code is derived from software contributed to Berkeley by */
|
|
/* Vern Paxson. */
|
|
|
|
/* The United States Government has rights in this work pursuant */
|
|
/* to contract no. DE-AC03-76SF00098 between the United States */
|
|
/* Department of Energy and the University of California. */
|
|
|
|
/* This file is part of flex. */
|
|
|
|
/* Redistribution and use in source and binary forms, with or without */
|
|
/* modification, are permitted provided that the following conditions */
|
|
/* are met: */
|
|
|
|
/* 1. Redistributions of source code must retain the above copyright */
|
|
/* notice, this list of conditions and the following disclaimer. */
|
|
/* 2. Redistributions in binary form must reproduce the above copyright */
|
|
/* notice, this list of conditions and the following disclaimer in the */
|
|
/* documentation and/or other materials provided with the distribution. */
|
|
|
|
/* Neither the name of the University nor the names of its contributors */
|
|
/* may be used to endorse or promote products derived from this software */
|
|
/* without specific prior written permission. */
|
|
|
|
/* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR */
|
|
/* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED */
|
|
/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
|
|
/* PURPOSE. */
|
|
|
|
#ifndef FLEXDEF_H
|
|
#define FLEXDEF_H 1
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
/* AIX requires this to be the first thing in the file. */
|
|
#ifndef __GNUC__
|
|
# if HAVE_ALLOCA_H
|
|
# include <alloca.h>
|
|
# else
|
|
# ifdef _AIX
|
|
#pragma alloca
|
|
# else
|
|
# ifndef alloca /* predefined by HP cc +Olibcalls */
|
|
char *alloca ();
|
|
# endif
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef STDC_HEADERS
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <setjmp.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#endif
|
|
#ifdef HAVE_ASSERT_H
|
|
#include <assert.h>
|
|
#else
|
|
#define assert(Pred)
|
|
#endif
|
|
|
|
#ifdef HAVE_LIMITS_H
|
|
#include <limits.h>
|
|
#endif
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
#ifdef HAVE_NETINET_IN_H
|
|
#include <netinet/in.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_PARAMS_H
|
|
#include <sys/params.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
#include <sys/wait.h>
|
|
#endif
|
|
#ifdef HAVE_STDBOOL_H
|
|
#include <stdbool.h>
|
|
#else
|
|
#define bool int
|
|
#define true 1
|
|
#define false 0
|
|
#endif
|
|
#ifdef HAVE_REGEX_H
|
|
#include <regex.h>
|
|
#endif
|
|
#include "flexint.h"
|
|
|
|
/* We use gettext. So, when we write strings which should be translated, we mark them with _() */
|
|
#ifdef ENABLE_NLS
|
|
#ifdef HAVE_LOCALE_H
|
|
#include <locale.h>
|
|
#endif /* HAVE_LOCALE_H */
|
|
#include "gettext.h"
|
|
#define _(String) gettext (String)
|
|
#else
|
|
#define _(STRING) STRING
|
|
#endif /* ENABLE_NLS */
|
|
|
|
/* Always be prepared to generate an 8-bit scanner. */
|
|
#define CSIZE 256
|
|
#define Char unsigned char
|
|
|
|
/* Size of input alphabet - should be size of ASCII set. */
|
|
#ifndef DEFAULT_CSIZE
|
|
#define DEFAULT_CSIZE 128
|
|
#endif
|
|
|
|
#ifndef PROTO
|
|
#if defined(__STDC__)
|
|
#define PROTO(proto) proto
|
|
#else
|
|
#define PROTO(proto) ()
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef VMS
|
|
#ifndef __VMS_POSIX
|
|
#define unlink remove
|
|
#define SHORT_FILE_NAMES
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef MS_DOS
|
|
#define SHORT_FILE_NAMES
|
|
#endif
|
|
|
|
|
|
/* Maximum line length we'll have to deal with. */
|
|
#define MAXLINE 2048
|
|
|
|
#ifndef MIN
|
|
#define MIN(x,y) ((x) < (y) ? (x) : (y))
|
|
#endif
|
|
#ifndef MAX
|
|
#define MAX(x,y) ((x) > (y) ? (x) : (y))
|
|
#endif
|
|
#ifndef ABS
|
|
#define ABS(x) ((x) < 0 ? -(x) : (x))
|
|
#endif
|
|
|
|
|
|
/* ANSI C does not guarantee that isascii() is defined */
|
|
#ifndef isascii
|
|
#define isascii(c) ((c) <= 0177)
|
|
#endif
|
|
|
|
#define unspecified -1
|
|
|
|
/* Special chk[] values marking the slots taking by end-of-buffer and action
|
|
* numbers.
|
|
*/
|
|
#define EOB_POSITION -1
|
|
#define ACTION_POSITION -2
|
|
|
|
/* Number of data items per line for -f output. */
|
|
#define NUMDATAITEMS 10
|
|
|
|
/* Number of lines of data in -f output before inserting a blank line for
|
|
* readability.
|
|
*/
|
|
#define NUMDATALINES 10
|
|
|
|
/* Number of characters to print a line number, i.e., 1 + log10(INT_MAX) */
|
|
#define NUMCHARLINES 10
|
|
|
|
/* transition_struct_out() definitions. */
|
|
#define TRANS_STRUCT_PRINT_LENGTH 14
|
|
|
|
/* Returns true if an nfa state has an epsilon out-transition slot
|
|
* that can be used. This definition is currently not used.
|
|
*/
|
|
#define FREE_EPSILON(state) \
|
|
(transchar[state] == SYM_EPSILON && \
|
|
trans2[state] == NO_TRANSITION && \
|
|
finalst[state] != state)
|
|
|
|
/* Returns true if an nfa state has an epsilon out-transition character
|
|
* and both slots are free
|
|
*/
|
|
#define SUPER_FREE_EPSILON(state) \
|
|
(transchar[state] == SYM_EPSILON && \
|
|
trans1[state] == NO_TRANSITION) \
|
|
|
|
/* Maximum number of NFA states that can comprise a DFA state. It's real
|
|
* big because if there's a lot of rules, the initial state will have a
|
|
* huge epsilon closure.
|
|
*/
|
|
#define INITIAL_MAX_DFA_SIZE 750
|
|
#define MAX_DFA_SIZE_INCREMENT 750
|
|
|
|
|
|
/* A note on the following masks. They are used to mark accepting numbers
|
|
* as being special. As such, they implicitly limit the number of accepting
|
|
* numbers (i.e., rules) because if there are too many rules the rule numbers
|
|
* will overload the mask bits. Fortunately, this limit is \large/ (0x2000 ==
|
|
* 8192) so unlikely to actually cause any problems. A check is made in
|
|
* new_rule() to ensure that this limit is not reached.
|
|
*/
|
|
|
|
/* Mask to mark a trailing context accepting number. */
|
|
#define YY_TRAILING_MASK 0x2000
|
|
|
|
/* Mask to mark the accepting number of the "head" of a trailing context
|
|
* rule.
|
|
*/
|
|
#define YY_TRAILING_HEAD_MASK 0x4000
|
|
|
|
/* Maximum number of rules, as outlined in the above note. */
|
|
#define MAX_RULE (YY_TRAILING_MASK - 1)
|
|
|
|
|
|
/* NIL must be 0. If not, its special meaning when making equivalence classes
|
|
* (it marks the representative of a given e.c.) will be unidentifiable.
|
|
*/
|
|
#define NIL 0
|
|
|
|
#define JAM -1 /* to mark a missing DFA transition */
|
|
#define NO_TRANSITION NIL
|
|
#define UNIQUE -1 /* marks a symbol as an e.c. representative */
|
|
#define INFINITE_REPEAT -1 /* for x{5,} constructions */
|
|
|
|
#define INITIAL_MAX_CCLS 100 /* max number of unique character classes */
|
|
#define MAX_CCLS_INCREMENT 100
|
|
|
|
/* Size of table holding members of character classes. */
|
|
#define INITIAL_MAX_CCL_TBL_SIZE 500
|
|
#define MAX_CCL_TBL_SIZE_INCREMENT 250
|
|
|
|
#define INITIAL_MAX_RULES 100 /* default maximum number of rules */
|
|
#define MAX_RULES_INCREMENT 100
|
|
|
|
#define INITIAL_MNS 2000 /* default maximum number of nfa states */
|
|
#define MNS_INCREMENT 1000 /* amount to bump above by if it's not enough */
|
|
|
|
#define INITIAL_MAX_DFAS 1000 /* default maximum number of dfa states */
|
|
#define MAX_DFAS_INCREMENT 1000
|
|
|
|
#define JAMSTATE -32766 /* marks a reference to the state that always jams */
|
|
|
|
/* Maximum number of NFA states. */
|
|
#define MAXIMUM_MNS 31999
|
|
#define MAXIMUM_MNS_LONG 1999999999
|
|
|
|
/* Enough so that if it's subtracted from an NFA state number, the result
|
|
* is guaranteed to be negative.
|
|
*/
|
|
#define MARKER_DIFFERENCE (maximum_mns+2)
|
|
|
|
/* Maximum number of nxt/chk pairs for non-templates. */
|
|
#define INITIAL_MAX_XPAIRS 2000
|
|
#define MAX_XPAIRS_INCREMENT 2000
|
|
|
|
/* Maximum number of nxt/chk pairs needed for templates. */
|
|
#define INITIAL_MAX_TEMPLATE_XPAIRS 2500
|
|
#define MAX_TEMPLATE_XPAIRS_INCREMENT 2500
|
|
|
|
#define SYM_EPSILON (CSIZE + 1) /* to mark transitions on the symbol epsilon */
|
|
|
|
#define INITIAL_MAX_SCS 40 /* maximum number of start conditions */
|
|
#define MAX_SCS_INCREMENT 40 /* amount to bump by if it's not enough */
|
|
|
|
#define ONE_STACK_SIZE 500 /* stack of states with only one out-transition */
|
|
#define SAME_TRANS -1 /* transition is the same as "default" entry for state */
|
|
|
|
/* The following percentages are used to tune table compression:
|
|
|
|
* The percentage the number of out-transitions a state must be of the
|
|
* number of equivalence classes in order to be considered for table
|
|
* compaction by using protos.
|
|
*/
|
|
#define PROTO_SIZE_PERCENTAGE 15
|
|
|
|
/* The percentage the number of homogeneous out-transitions of a state
|
|
* must be of the number of total out-transitions of the state in order
|
|
* that the state's transition table is first compared with a potential
|
|
* template of the most common out-transition instead of with the first
|
|
* proto in the proto queue.
|
|
*/
|
|
#define CHECK_COM_PERCENTAGE 50
|
|
|
|
/* The percentage the number of differences between a state's transition
|
|
* table and the proto it was first compared with must be of the total
|
|
* number of out-transitions of the state in order to keep the first
|
|
* proto as a good match and not search any further.
|
|
*/
|
|
#define FIRST_MATCH_DIFF_PERCENTAGE 10
|
|
|
|
/* The percentage the number of differences between a state's transition
|
|
* table and the most similar proto must be of the state's total number
|
|
* of out-transitions to use the proto as an acceptable close match.
|
|
*/
|
|
#define ACCEPTABLE_DIFF_PERCENTAGE 50
|
|
|
|
/* The percentage the number of homogeneous out-transitions of a state
|
|
* must be of the number of total out-transitions of the state in order
|
|
* to consider making a template from the state.
|
|
*/
|
|
#define TEMPLATE_SAME_PERCENTAGE 60
|
|
|
|
/* The percentage the number of differences between a state's transition
|
|
* table and the most similar proto must be of the state's total number
|
|
* of out-transitions to create a new proto from the state.
|
|
*/
|
|
#define NEW_PROTO_DIFF_PERCENTAGE 20
|
|
|
|
/* The percentage the total number of out-transitions of a state must be
|
|
* of the number of equivalence classes in order to consider trying to
|
|
* fit the transition table into "holes" inside the nxt/chk table.
|
|
*/
|
|
#define INTERIOR_FIT_PERCENTAGE 15
|
|
|
|
/* Size of region set aside to cache the complete transition table of
|
|
* protos on the proto queue to enable quick comparisons.
|
|
*/
|
|
#define PROT_SAVE_SIZE 2000
|
|
|
|
#define MSP 50 /* maximum number of saved protos (protos on the proto queue) */
|
|
|
|
/* Maximum number of out-transitions a state can have that we'll rummage
|
|
* around through the interior of the internal fast table looking for a
|
|
* spot for it.
|
|
*/
|
|
#define MAX_XTIONS_FULL_INTERIOR_FIT 4
|
|
|
|
/* Maximum number of rules which will be reported as being associated
|
|
* with a DFA state.
|
|
*/
|
|
#define MAX_ASSOC_RULES 100
|
|
|
|
/* Number that, if used to subscript an array, has a good chance of producing
|
|
* an error; should be small enough to fit into a short.
|
|
*/
|
|
#define BAD_SUBSCRIPT -32767
|
|
|
|
/* Absolute value of largest number that can be stored in a short, with a
|
|
* bit of slop thrown in for general paranoia.
|
|
*/
|
|
#define MAX_SHORT 32700
|
|
|
|
|
|
/* Declarations for global variables. */
|
|
|
|
|
|
/* Variables for flags:
|
|
* printstats - if true (-v), dump statistics
|
|
* syntaxerror - true if a syntax error has been found
|
|
* eofseen - true if we've seen an eof in the input file
|
|
* ddebug - if true (-d), make a "debug" scanner
|
|
* trace - if true (-T), trace processing
|
|
* nowarn - if true (-w), do not generate warnings
|
|
* spprdflt - if true (-s), suppress the default rule
|
|
* interactive - if true (-I), generate an interactive scanner
|
|
* lex_compat - if true (-l), maximize compatibility with AT&T lex
|
|
* posix_compat - if true (-X), maximize compatibility with POSIX lex
|
|
* do_yylineno - if true, generate code to maintain yylineno
|
|
* useecs - if true (-Ce flag), use equivalence classes
|
|
* fulltbl - if true (-Cf flag), don't compress the DFA state table
|
|
* usemecs - if true (-Cm flag), use meta-equivalence classes
|
|
* fullspd - if true (-F flag), use Jacobson method of table representation
|
|
* gen_line_dirs - if true (i.e., no -L flag), generate #line directives
|
|
* performance_report - if > 0 (i.e., -p flag), generate a report relating
|
|
* to scanner performance; if > 1 (-p -p), report on minor performance
|
|
* problems, too
|
|
* backing_up_report - if true (i.e., -b flag), generate "lex.backup" file
|
|
* listing backing-up states
|
|
* C_plus_plus - if true (i.e., -+ flag), generate a C++ scanner class;
|
|
* otherwise, a standard C scanner
|
|
* reentrant - if true (-R), generate a reentrant C scanner.
|
|
* bison_bridge_lval - if true (--bison-bridge), bison pure calling convention.
|
|
* bison_bridge_lloc - if true (--bison-locations), bison yylloc.
|
|
* long_align - if true (-Ca flag), favor long-word alignment.
|
|
* use_read - if true (-f, -F, or -Cr) then use read() for scanner input;
|
|
* otherwise, use fread().
|
|
* yytext_is_array - if true (i.e., %array directive), then declare
|
|
* yytext as an array instead of a character pointer. Nice and inefficient.
|
|
* do_yywrap - do yywrap() processing on EOF. If false, EOF treated as
|
|
* "no more files".
|
|
* csize - size of character set for the scanner we're generating;
|
|
* 128 for 7-bit chars and 256 for 8-bit
|
|
* yymore_used - if true, yymore() is used in input rules
|
|
* reject - if true, generate back-up tables for REJECT macro
|
|
* real_reject - if true, scanner really uses REJECT (as opposed to just
|
|
* having "reject" set for variable trailing context)
|
|
* continued_action - true if this rule's action is to "fall through" to
|
|
* the next rule's action (i.e., the '|' action)
|
|
* in_rule - true if we're inside an individual rule, false if not.
|
|
* yymore_really_used - whether to treat yymore() as really used, regardless
|
|
* of what we think based on references to it in the user's actions.
|
|
* reject_really_used - same for REJECT
|
|
*/
|
|
|
|
extern int printstats, syntaxerror, eofseen, ddebug, trace, nowarn,
|
|
spprdflt;
|
|
extern int interactive, lex_compat, posix_compat, do_yylineno;
|
|
extern int useecs, fulltbl, usemecs, fullspd;
|
|
extern int gen_line_dirs, performance_report, backing_up_report;
|
|
extern int reentrant, bison_bridge_lval, bison_bridge_lloc;
|
|
extern bool ansi_func_defs, ansi_func_protos;
|
|
extern int C_plus_plus, long_align, use_read, yytext_is_array, do_yywrap;
|
|
extern int csize;
|
|
extern int yymore_used, reject, real_reject, continued_action, in_rule;
|
|
|
|
extern int yymore_really_used, reject_really_used;
|
|
|
|
|
|
/* Variables used in the flex input routines:
|
|
* datapos - characters on current output line
|
|
* dataline - number of contiguous lines of data in current data
|
|
* statement. Used to generate readable -f output
|
|
* linenum - current input line number
|
|
* skelfile - the skeleton file
|
|
* skel - compiled-in skeleton array
|
|
* skel_ind - index into "skel" array, if skelfile is nil
|
|
* yyin - input file
|
|
* backing_up_file - file to summarize backing-up states to
|
|
* infilename - name of input file
|
|
* outfilename - name of output file
|
|
* headerfilename - name of the .h file to generate
|
|
* did_outfilename - whether outfilename was explicitly set
|
|
* prefix - the prefix used for externally visible names ("yy" by default)
|
|
* yyclass - yyFlexLexer subclass to use for YY_DECL
|
|
* do_stdinit - whether to initialize yyin/yyout to stdin/stdout
|
|
* use_stdout - the -t flag
|
|
* input_files - array holding names of input files
|
|
* num_input_files - size of input_files array
|
|
* program_name - name with which program was invoked
|
|
*
|
|
* action_array - array to hold the rule actions
|
|
* action_size - size of action_array
|
|
* defs1_offset - index where the user's section 1 definitions start
|
|
* in action_array
|
|
* prolog_offset - index where the prolog starts in action_array
|
|
* action_offset - index where the non-prolog starts in action_array
|
|
* action_index - index where the next action should go, with respect
|
|
* to "action_array"
|
|
*/
|
|
|
|
extern int datapos, dataline, linenum;
|
|
extern FILE *skelfile, *yyin, *backing_up_file;
|
|
extern const char *skel[];
|
|
extern int skel_ind;
|
|
extern char *infilename, *outfilename, *headerfilename;
|
|
extern int did_outfilename;
|
|
extern char *prefix, *yyclass, *extra_type;
|
|
extern int do_stdinit, use_stdout;
|
|
extern char **input_files;
|
|
extern int num_input_files;
|
|
extern char *program_name;
|
|
|
|
extern char *action_array;
|
|
extern int action_size;
|
|
extern int defs1_offset, prolog_offset, action_offset, action_index;
|
|
|
|
|
|
/* Variables for stack of states having only one out-transition:
|
|
* onestate - state number
|
|
* onesym - transition symbol
|
|
* onenext - target state
|
|
* onedef - default base entry
|
|
* onesp - stack pointer
|
|
*/
|
|
|
|
extern int onestate[ONE_STACK_SIZE], onesym[ONE_STACK_SIZE];
|
|
extern int onenext[ONE_STACK_SIZE], onedef[ONE_STACK_SIZE], onesp;
|
|
|
|
|
|
/* Variables for nfa machine data:
|
|
* maximum_mns - maximal number of NFA states supported by tables
|
|
* current_mns - current maximum on number of NFA states
|
|
* num_rules - number of the last accepting state; also is number of
|
|
* rules created so far
|
|
* num_eof_rules - number of <<EOF>> rules
|
|
* default_rule - number of the default rule
|
|
* current_max_rules - current maximum number of rules
|
|
* lastnfa - last nfa state number created
|
|
* firstst - physically the first state of a fragment
|
|
* lastst - last physical state of fragment
|
|
* finalst - last logical state of fragment
|
|
* transchar - transition character
|
|
* trans1 - transition state
|
|
* trans2 - 2nd transition state for epsilons
|
|
* accptnum - accepting number
|
|
* assoc_rule - rule associated with this NFA state (or 0 if none)
|
|
* state_type - a STATE_xxx type identifying whether the state is part
|
|
* of a normal rule, the leading state in a trailing context
|
|
* rule (i.e., the state which marks the transition from
|
|
* recognizing the text-to-be-matched to the beginning of
|
|
* the trailing context), or a subsequent state in a trailing
|
|
* context rule
|
|
* rule_type - a RULE_xxx type identifying whether this a ho-hum
|
|
* normal rule or one which has variable head & trailing
|
|
* context
|
|
* rule_linenum - line number associated with rule
|
|
* rule_useful - true if we've determined that the rule can be matched
|
|
* rule_has_nl - true if rule could possibly match a newline
|
|
* ccl_has_nl - true if current ccl could match a newline
|
|
* nlch - default eol char
|
|
*/
|
|
|
|
extern int maximum_mns, current_mns, current_max_rules;
|
|
extern int num_rules, num_eof_rules, default_rule, lastnfa;
|
|
extern int *firstst, *lastst, *finalst, *transchar, *trans1, *trans2;
|
|
extern int *accptnum, *assoc_rule, *state_type;
|
|
extern int *rule_type, *rule_linenum, *rule_useful;
|
|
extern bool *rule_has_nl, *ccl_has_nl;
|
|
extern int nlch;
|
|
|
|
/* Different types of states; values are useful as masks, as well, for
|
|
* routines like check_trailing_context().
|
|
*/
|
|
#define STATE_NORMAL 0x1
|
|
#define STATE_TRAILING_CONTEXT 0x2
|
|
|
|
/* Global holding current type of state we're making. */
|
|
|
|
extern int current_state_type;
|
|
|
|
/* Different types of rules. */
|
|
#define RULE_NORMAL 0
|
|
#define RULE_VARIABLE 1
|
|
|
|
/* True if the input rules include a rule with both variable-length head
|
|
* and trailing context, false otherwise.
|
|
*/
|
|
extern int variable_trailing_context_rules;
|
|
|
|
|
|
/* Variables for protos:
|
|
* numtemps - number of templates created
|
|
* numprots - number of protos created
|
|
* protprev - backlink to a more-recently used proto
|
|
* protnext - forward link to a less-recently used proto
|
|
* prottbl - base/def table entry for proto
|
|
* protcomst - common state of proto
|
|
* firstprot - number of the most recently used proto
|
|
* lastprot - number of the least recently used proto
|
|
* protsave contains the entire state array for protos
|
|
*/
|
|
|
|
extern int numtemps, numprots, protprev[MSP], protnext[MSP], prottbl[MSP];
|
|
extern int protcomst[MSP], firstprot, lastprot, protsave[PROT_SAVE_SIZE];
|
|
|
|
|
|
/* Variables for managing equivalence classes:
|
|
* numecs - number of equivalence classes
|
|
* nextecm - forward link of Equivalence Class members
|
|
* ecgroup - class number or backward link of EC members
|
|
* nummecs - number of meta-equivalence classes (used to compress
|
|
* templates)
|
|
* tecfwd - forward link of meta-equivalence classes members
|
|
* tecbck - backward link of MEC's
|
|
*/
|
|
|
|
/* Reserve enough room in the equivalence class arrays so that we
|
|
* can use the CSIZE'th element to hold equivalence class information
|
|
* for the NUL character. Later we'll move this information into
|
|
* the 0th element.
|
|
*/
|
|
extern int numecs, nextecm[CSIZE + 1], ecgroup[CSIZE + 1], nummecs;
|
|
|
|
/* Meta-equivalence classes are indexed starting at 1, so it's possible
|
|
* that they will require positions from 1 .. CSIZE, i.e., CSIZE + 1
|
|
* slots total (since the arrays are 0-based). nextecm[] and ecgroup[]
|
|
* don't require the extra position since they're indexed from 1 .. CSIZE - 1.
|
|
*/
|
|
extern int tecfwd[CSIZE + 1], tecbck[CSIZE + 1];
|
|
|
|
|
|
/* Variables for start conditions:
|
|
* lastsc - last start condition created
|
|
* current_max_scs - current limit on number of start conditions
|
|
* scset - set of rules active in start condition
|
|
* scbol - set of rules active only at the beginning of line in a s.c.
|
|
* scxclu - true if start condition is exclusive
|
|
* sceof - true if start condition has EOF rule
|
|
* scname - start condition name
|
|
*/
|
|
|
|
extern int lastsc, *scset, *scbol, *scxclu, *sceof;
|
|
extern int current_max_scs;
|
|
extern char **scname;
|
|
|
|
|
|
/* Variables for dfa machine data:
|
|
* current_max_dfa_size - current maximum number of NFA states in DFA
|
|
* current_max_xpairs - current maximum number of non-template xtion pairs
|
|
* current_max_template_xpairs - current maximum number of template pairs
|
|
* current_max_dfas - current maximum number DFA states
|
|
* lastdfa - last dfa state number created
|
|
* nxt - state to enter upon reading character
|
|
* chk - check value to see if "nxt" applies
|
|
* tnxt - internal nxt table for templates
|
|
* base - offset into "nxt" for given state
|
|
* def - where to go if "chk" disallows "nxt" entry
|
|
* nultrans - NUL transition for each state
|
|
* NUL_ec - equivalence class of the NUL character
|
|
* tblend - last "nxt/chk" table entry being used
|
|
* firstfree - first empty entry in "nxt/chk" table
|
|
* dss - nfa state set for each dfa
|
|
* dfasiz - size of nfa state set for each dfa
|
|
* dfaacc - accepting set for each dfa state (if using REJECT), or accepting
|
|
* number, if not
|
|
* accsiz - size of accepting set for each dfa state
|
|
* dhash - dfa state hash value
|
|
* numas - number of DFA accepting states created; note that this
|
|
* is not necessarily the same value as num_rules, which is the analogous
|
|
* value for the NFA
|
|
* numsnpairs - number of state/nextstate transition pairs
|
|
* jambase - position in base/def where the default jam table starts
|
|
* jamstate - state number corresponding to "jam" state
|
|
* end_of_buffer_state - end-of-buffer dfa state number
|
|
*/
|
|
|
|
extern int current_max_dfa_size, current_max_xpairs;
|
|
extern int current_max_template_xpairs, current_max_dfas;
|
|
extern int lastdfa, *nxt, *chk, *tnxt;
|
|
extern int *base, *def, *nultrans, NUL_ec, tblend, firstfree, **dss,
|
|
*dfasiz;
|
|
extern union dfaacc_union {
|
|
int *dfaacc_set;
|
|
int dfaacc_state;
|
|
} *dfaacc;
|
|
extern int *accsiz, *dhash, numas;
|
|
extern int numsnpairs, jambase, jamstate;
|
|
extern int end_of_buffer_state;
|
|
|
|
/* Variables for ccl information:
|
|
* lastccl - ccl index of the last created ccl
|
|
* current_maxccls - current limit on the maximum number of unique ccl's
|
|
* cclmap - maps a ccl index to its set pointer
|
|
* ccllen - gives the length of a ccl
|
|
* cclng - true for a given ccl if the ccl is negated
|
|
* cclreuse - counts how many times a ccl is re-used
|
|
* current_max_ccl_tbl_size - current limit on number of characters needed
|
|
* to represent the unique ccl's
|
|
* ccltbl - holds the characters in each ccl - indexed by cclmap
|
|
*/
|
|
|
|
extern int lastccl, *cclmap, *ccllen, *cclng, cclreuse;
|
|
extern int current_maxccls, current_max_ccl_tbl_size;
|
|
extern Char *ccltbl;
|
|
|
|
|
|
/* Variables for miscellaneous information:
|
|
* nmstr - last NAME scanned by the scanner
|
|
* sectnum - section number currently being parsed
|
|
* nummt - number of empty nxt/chk table entries
|
|
* hshcol - number of hash collisions detected by snstods
|
|
* dfaeql - number of times a newly created dfa was equal to an old one
|
|
* numeps - number of epsilon NFA states created
|
|
* eps2 - number of epsilon states which have 2 out-transitions
|
|
* num_reallocs - number of times it was necessary to realloc() a group
|
|
* of arrays
|
|
* tmpuses - number of DFA states that chain to templates
|
|
* totnst - total number of NFA states used to make DFA states
|
|
* peakpairs - peak number of transition pairs we had to store internally
|
|
* numuniq - number of unique transitions
|
|
* numdup - number of duplicate transitions
|
|
* hshsave - number of hash collisions saved by checking number of states
|
|
* num_backing_up - number of DFA states requiring backing up
|
|
* bol_needed - whether scanner needs beginning-of-line recognition
|
|
*/
|
|
|
|
extern char nmstr[MAXLINE];
|
|
extern int sectnum, nummt, hshcol, dfaeql, numeps, eps2, num_reallocs;
|
|
extern int tmpuses, totnst, peakpairs, numuniq, numdup, hshsave;
|
|
extern int num_backing_up, bol_needed;
|
|
|
|
void *allocate_array PROTO ((int, size_t));
|
|
void *reallocate_array PROTO ((void *, int, size_t));
|
|
|
|
void *flex_alloc PROTO ((size_t));
|
|
void *flex_realloc PROTO ((void *, size_t));
|
|
void flex_free PROTO ((void *));
|
|
|
|
#define allocate_integer_array(size) \
|
|
(int *) allocate_array( size, sizeof( int ) )
|
|
|
|
#define reallocate_integer_array(array,size) \
|
|
(int *) reallocate_array( (void *) array, size, sizeof( int ) )
|
|
|
|
#define allocate_bool_array(size) \
|
|
(bool *) allocate_array( size, sizeof( bool ) )
|
|
|
|
#define reallocate_bool_array(array,size) \
|
|
(bool *) reallocate_array( (void *) array, size, sizeof( bool ) )
|
|
|
|
#define allocate_int_ptr_array(size) \
|
|
(int **) allocate_array( size, sizeof( int * ) )
|
|
|
|
#define allocate_char_ptr_array(size) \
|
|
(char **) allocate_array( size, sizeof( char * ) )
|
|
|
|
#define allocate_dfaacc_union(size) \
|
|
(union dfaacc_union *) \
|
|
allocate_array( size, sizeof( union dfaacc_union ) )
|
|
|
|
#define reallocate_int_ptr_array(array,size) \
|
|
(int **) reallocate_array( (void *) array, size, sizeof( int * ) )
|
|
|
|
#define reallocate_char_ptr_array(array,size) \
|
|
(char **) reallocate_array( (void *) array, size, sizeof( char * ) )
|
|
|
|
#define reallocate_dfaacc_union(array, size) \
|
|
(union dfaacc_union *) \
|
|
reallocate_array( (void *) array, size, sizeof( union dfaacc_union ) )
|
|
|
|
#define allocate_character_array(size) \
|
|
(char *) allocate_array( size, sizeof( char ) )
|
|
|
|
#define reallocate_character_array(array,size) \
|
|
(char *) reallocate_array( (void *) array, size, sizeof( char ) )
|
|
|
|
#define allocate_Character_array(size) \
|
|
(Char *) allocate_array( size, sizeof( Char ) )
|
|
|
|
#define reallocate_Character_array(array,size) \
|
|
(Char *) reallocate_array( (void *) array, size, sizeof( Char ) )
|
|
|
|
|
|
/* Used to communicate between scanner and parser. The type should really
|
|
* be YYSTYPE, but we can't easily get our hands on it.
|
|
*/
|
|
extern int yylval;
|
|
|
|
|
|
/* External functions that are cross-referenced among the flex source files. */
|
|
|
|
|
|
/* from file ccl.c */
|
|
|
|
extern void ccladd PROTO ((int, int)); /* add a single character to a ccl */
|
|
extern int cclinit PROTO ((void)); /* make an empty ccl */
|
|
extern void cclnegate PROTO ((int)); /* negate a ccl */
|
|
extern int ccl_set_diff (int a, int b); /* set difference of two ccls. */
|
|
extern int ccl_set_union (int a, int b); /* set union of two ccls. */
|
|
|
|
/* List the members of a set of characters in CCL form. */
|
|
extern void list_character_set PROTO ((FILE *, int[]));
|
|
|
|
|
|
/* from file dfa.c */
|
|
|
|
/* Check a DFA state for backing up. */
|
|
extern void check_for_backing_up PROTO ((int, int[]));
|
|
|
|
/* Check to see if NFA state set constitutes "dangerous" trailing context. */
|
|
extern void check_trailing_context PROTO ((int *, int, int *, int));
|
|
|
|
/* Construct the epsilon closure of a set of ndfa states. */
|
|
extern int *epsclosure PROTO ((int *, int *, int[], int *, int *));
|
|
|
|
/* Increase the maximum number of dfas. */
|
|
extern void increase_max_dfas PROTO ((void));
|
|
|
|
extern void ntod PROTO ((void)); /* convert a ndfa to a dfa */
|
|
|
|
/* Converts a set of ndfa states into a dfa state. */
|
|
extern int snstods PROTO ((int[], int, int[], int, int, int *));
|
|
|
|
|
|
/* from file ecs.c */
|
|
|
|
/* Convert character classes to set of equivalence classes. */
|
|
extern void ccl2ecl PROTO ((void));
|
|
|
|
/* Associate equivalence class numbers with class members. */
|
|
extern int cre8ecs PROTO ((int[], int[], int));
|
|
|
|
/* Update equivalence classes based on character class transitions. */
|
|
extern void mkeccl PROTO ((Char[], int, int[], int[], int, int));
|
|
|
|
/* Create equivalence class for single character. */
|
|
extern void mkechar PROTO ((int, int[], int[]));
|
|
|
|
|
|
/* from file gen.c */
|
|
|
|
extern void do_indent PROTO ((void)); /* indent to the current level */
|
|
|
|
/* Generate the code to keep backing-up information. */
|
|
extern void gen_backing_up PROTO ((void));
|
|
|
|
/* Generate the code to perform the backing up. */
|
|
extern void gen_bu_action PROTO ((void));
|
|
|
|
/* Generate full speed compressed transition table. */
|
|
extern void genctbl PROTO ((void));
|
|
|
|
/* Generate the code to find the action number. */
|
|
extern void gen_find_action PROTO ((void));
|
|
|
|
extern void genftbl PROTO ((void)); /* generate full transition table */
|
|
|
|
/* Generate the code to find the next compressed-table state. */
|
|
extern void gen_next_compressed_state PROTO ((char *));
|
|
|
|
/* Generate the code to find the next match. */
|
|
extern void gen_next_match PROTO ((void));
|
|
|
|
/* Generate the code to find the next state. */
|
|
extern void gen_next_state PROTO ((int));
|
|
|
|
/* Generate the code to make a NUL transition. */
|
|
extern void gen_NUL_trans PROTO ((void));
|
|
|
|
/* Generate the code to find the start state. */
|
|
extern void gen_start_state PROTO ((void));
|
|
|
|
/* Generate data statements for the transition tables. */
|
|
extern void gentabs PROTO ((void));
|
|
|
|
/* Write out a formatted string at the current indentation level. */
|
|
extern void indent_put2s PROTO ((const char *, const char *));
|
|
|
|
/* Write out a string + newline at the current indentation level. */
|
|
extern void indent_puts PROTO ((const char *));
|
|
|
|
extern void make_tables PROTO ((void)); /* generate transition tables */
|
|
|
|
|
|
/* from file main.c */
|
|
|
|
extern void check_options PROTO ((void));
|
|
extern void flexend PROTO ((int));
|
|
extern void usage PROTO ((void));
|
|
|
|
|
|
/* from file misc.c */
|
|
|
|
/* Add a #define to the action file. */
|
|
extern void action_define PROTO ((const char *defname, int value));
|
|
|
|
/* Add the given text to the stored actions. */
|
|
extern void add_action PROTO ((const char *new_text));
|
|
|
|
/* True if a string is all lower case. */
|
|
extern int all_lower PROTO ((char *));
|
|
|
|
/* True if a string is all upper case. */
|
|
extern int all_upper PROTO ((char *));
|
|
|
|
/* Compare two integers for use by qsort. */
|
|
extern int intcmp PROTO ((const void *, const void *));
|
|
|
|
/* Check a character to make sure it's in the expected range. */
|
|
extern void check_char PROTO ((int c));
|
|
|
|
/* Replace upper-case letter to lower-case. */
|
|
extern Char clower PROTO ((int));
|
|
|
|
/* Returns a dynamically allocated copy of a string. */
|
|
extern char *copy_string PROTO ((const char *));
|
|
|
|
/* Returns a dynamically allocated copy of a (potentially) unsigned string. */
|
|
extern Char *copy_unsigned_string PROTO ((Char *));
|
|
|
|
/* Compare two characters for use by qsort with '\0' sorting last. */
|
|
extern int cclcmp PROTO ((const void *, const void *));
|
|
|
|
/* Finish up a block of data declarations. */
|
|
extern void dataend PROTO ((void));
|
|
|
|
/* Flush generated data statements. */
|
|
extern void dataflush PROTO ((void));
|
|
|
|
/* Report an error message and terminate. */
|
|
extern void flexerror PROTO ((const char *));
|
|
|
|
/* Report a fatal error message and terminate. */
|
|
extern void flexfatal PROTO ((const char *));
|
|
|
|
/* Report a fatal error with a pinpoint, and terminate */
|
|
#if HAVE_DECL___FUNC__
|
|
#define flex_die(msg) \
|
|
do{ \
|
|
fprintf (stderr,\
|
|
_("%s: fatal internal error at %s:%d (%s): %s\n"),\
|
|
program_name, __FILE__, (int)__LINE__,\
|
|
__func__,msg);\
|
|
FLEX_EXIT(1);\
|
|
}while(0)
|
|
#else /* ! HAVE_DECL___FUNC__ */
|
|
#define flex_die(msg) \
|
|
do{ \
|
|
fprintf (stderr,\
|
|
_("%s: fatal internal error at %s:%d %s\n"),\
|
|
program_name, __FILE__, (int)__LINE__,\
|
|
msg);\
|
|
FLEX_EXIT(1);\
|
|
}while(0)
|
|
#endif /* ! HAVE_DECL___func__ */
|
|
|
|
/* Convert a hexadecimal digit string to an integer value. */
|
|
extern int htoi PROTO ((Char[]));
|
|
|
|
/* Report an error message formatted with one integer argument. */
|
|
extern void lerrif PROTO ((const char *, int));
|
|
|
|
/* Report an error message formatted with one string argument. */
|
|
extern void lerrsf PROTO ((const char *, const char *));
|
|
|
|
/* Like lerrsf, but also exit after displaying message. */
|
|
extern void lerrsf_fatal PROTO ((const char *, const char *));
|
|
|
|
/* Spit out a "#line" statement. */
|
|
extern void line_directive_out PROTO ((FILE *, int));
|
|
|
|
/* Mark the current position in the action array as the end of the section 1
|
|
* user defs.
|
|
*/
|
|
extern void mark_defs1 PROTO ((void));
|
|
|
|
/* Mark the current position in the action array as the end of the prolog. */
|
|
extern void mark_prolog PROTO ((void));
|
|
|
|
/* Generate a data statement for a two-dimensional array. */
|
|
extern void mk2data PROTO ((int));
|
|
|
|
extern void mkdata PROTO ((int)); /* generate a data statement */
|
|
|
|
/* Return the integer represented by a string of digits. */
|
|
extern int myctoi PROTO ((const char *));
|
|
|
|
/* Return character corresponding to escape sequence. */
|
|
extern Char myesc PROTO ((Char[]));
|
|
|
|
/* Convert an octal digit string to an integer value. */
|
|
extern int otoi PROTO ((Char[]));
|
|
|
|
/* Output a (possibly-formatted) string to the generated scanner. */
|
|
extern void out PROTO ((const char *));
|
|
extern void out_dec PROTO ((const char *, int));
|
|
extern void out_dec2 PROTO ((const char *, int, int));
|
|
extern void out_hex PROTO ((const char *, unsigned int));
|
|
extern void out_str PROTO ((const char *, const char *));
|
|
extern void out_str3
|
|
PROTO ((const char *, const char *, const char *, const char *));
|
|
extern void out_str_dec PROTO ((const char *, const char *, int));
|
|
extern void outc PROTO ((int));
|
|
extern void outn PROTO ((const char *));
|
|
extern void out_m4_define (const char* def, const char* val);
|
|
|
|
/* Return a printable version of the given character, which might be
|
|
* 8-bit.
|
|
*/
|
|
extern char *readable_form PROTO ((int));
|
|
|
|
/* Write out one section of the skeleton file. */
|
|
extern void skelout PROTO ((void));
|
|
|
|
/* Output a yy_trans_info structure. */
|
|
extern void transition_struct_out PROTO ((int, int));
|
|
|
|
/* Only needed when using certain broken versions of bison to build parse.c. */
|
|
extern void *yy_flex_xmalloc PROTO ((int));
|
|
|
|
/* Set a region of memory to 0. */
|
|
extern void zero_out PROTO ((char *, size_t));
|
|
|
|
|
|
/* from file nfa.c */
|
|
|
|
/* Add an accepting state to a machine. */
|
|
extern void add_accept PROTO ((int, int));
|
|
|
|
/* Make a given number of copies of a singleton machine. */
|
|
extern int copysingl PROTO ((int, int));
|
|
|
|
/* Debugging routine to write out an nfa. */
|
|
extern void dumpnfa PROTO ((int));
|
|
|
|
/* Finish up the processing for a rule. */
|
|
extern void finish_rule PROTO ((int, int, int, int, int));
|
|
|
|
/* Connect two machines together. */
|
|
extern int link_machines PROTO ((int, int));
|
|
|
|
/* Mark each "beginning" state in a machine as being a "normal" (i.e.,
|
|
* not trailing context associated) state.
|
|
*/
|
|
extern void mark_beginning_as_normal PROTO ((int));
|
|
|
|
/* Make a machine that branches to two machines. */
|
|
extern int mkbranch PROTO ((int, int));
|
|
|
|
extern int mkclos PROTO ((int)); /* convert a machine into a closure */
|
|
extern int mkopt PROTO ((int)); /* make a machine optional */
|
|
|
|
/* Make a machine that matches either one of two machines. */
|
|
extern int mkor PROTO ((int, int));
|
|
|
|
/* Convert a machine into a positive closure. */
|
|
extern int mkposcl PROTO ((int));
|
|
|
|
extern int mkrep PROTO ((int, int, int)); /* make a replicated machine */
|
|
|
|
/* Create a state with a transition on a given symbol. */
|
|
extern int mkstate PROTO ((int));
|
|
|
|
extern void new_rule PROTO ((void)); /* initialize for a new rule */
|
|
|
|
|
|
/* from file parse.y */
|
|
|
|
/* Build the "<<EOF>>" action for the active start conditions. */
|
|
extern void build_eof_action PROTO ((void));
|
|
|
|
/* Write out a message formatted with one string, pinpointing its location. */
|
|
extern void format_pinpoint_message PROTO ((const char *, const char *));
|
|
|
|
/* Write out a message, pinpointing its location. */
|
|
extern void pinpoint_message PROTO ((const char *));
|
|
|
|
/* Write out a warning, pinpointing it at the given line. */
|
|
extern void line_warning PROTO ((const char *, int));
|
|
|
|
/* Write out a message, pinpointing it at the given line. */
|
|
extern void line_pinpoint PROTO ((const char *, int));
|
|
|
|
/* Report a formatted syntax error. */
|
|
extern void format_synerr PROTO ((const char *, const char *));
|
|
extern void synerr PROTO ((const char *)); /* report a syntax error */
|
|
extern void format_warn PROTO ((const char *, const char *));
|
|
extern void warn PROTO ((const char *)); /* report a warning */
|
|
extern void yyerror PROTO ((const char *)); /* report a parse error */
|
|
extern int yyparse PROTO ((void)); /* the YACC parser */
|
|
|
|
|
|
/* from file scan.l */
|
|
|
|
/* The Flex-generated scanner for flex. */
|
|
extern int flexscan PROTO ((void));
|
|
|
|
/* Open the given file (if NULL, stdin) for scanning. */
|
|
extern void set_input_file PROTO ((char *));
|
|
|
|
/* Wrapup a file in the lexical analyzer. */
|
|
extern int yywrap PROTO ((void));
|
|
|
|
|
|
/* from file sym.c */
|
|
|
|
/* Save the text of a character class. */
|
|
extern void cclinstal PROTO ((Char[], int));
|
|
|
|
/* Lookup the number associated with character class. */
|
|
extern int ccllookup PROTO ((Char[]));
|
|
|
|
extern void ndinstal PROTO ((const char *, Char[])); /* install a name definition */
|
|
extern Char *ndlookup PROTO ((const char *)); /* lookup a name definition */
|
|
|
|
/* Increase maximum number of SC's. */
|
|
extern void scextend PROTO ((void));
|
|
extern void scinstal PROTO ((const char *, int)); /* make a start condition */
|
|
|
|
/* Lookup the number associated with a start condition. */
|
|
extern int sclookup PROTO ((const char *));
|
|
|
|
|
|
/* from file tblcmp.c */
|
|
|
|
/* Build table entries for dfa state. */
|
|
extern void bldtbl PROTO ((int[], int, int, int, int));
|
|
|
|
extern void cmptmps PROTO ((void)); /* compress template table entries */
|
|
extern void expand_nxt_chk PROTO ((void)); /* increase nxt/chk arrays */
|
|
|
|
/* Finds a space in the table for a state to be placed. */
|
|
extern int find_table_space PROTO ((int *, int));
|
|
extern void inittbl PROTO ((void)); /* initialize transition tables */
|
|
|
|
/* Make the default, "jam" table entries. */
|
|
extern void mkdeftbl PROTO ((void));
|
|
|
|
/* Create table entries for a state (or state fragment) which has
|
|
* only one out-transition.
|
|
*/
|
|
extern void mk1tbl PROTO ((int, int, int, int));
|
|
|
|
/* Place a state into full speed transition table. */
|
|
extern void place_state PROTO ((int *, int, int));
|
|
|
|
/* Save states with only one out-transition to be processed later. */
|
|
extern void stack1 PROTO ((int, int, int, int));
|
|
|
|
|
|
/* from file yylex.c */
|
|
|
|
extern int yylex PROTO ((void));
|
|
|
|
/* A growable array. See buf.c. */
|
|
struct Buf {
|
|
void *elts; /* elements. */
|
|
int nelts; /* number of elements. */
|
|
size_t elt_size; /* in bytes. */
|
|
int nmax; /* max capacity of elements. */
|
|
};
|
|
|
|
extern void buf_init PROTO ((struct Buf * buf, size_t elem_size));
|
|
extern void buf_destroy PROTO ((struct Buf * buf));
|
|
extern struct Buf *buf_append
|
|
PROTO ((struct Buf * buf, const void *ptr, int n_elem));
|
|
extern struct Buf *buf_concat PROTO((struct Buf* dest, const struct Buf* src));
|
|
extern struct Buf *buf_strappend PROTO ((struct Buf *, const char *str));
|
|
extern struct Buf *buf_strnappend
|
|
PROTO ((struct Buf *, const char *str, int nchars));
|
|
extern struct Buf *buf_strdefine
|
|
PROTO ((struct Buf * buf, const char *str, const char *def));
|
|
extern struct Buf *buf_prints PROTO((struct Buf *buf, const char *fmt, const char* s));
|
|
extern struct Buf *buf_m4_define PROTO((struct Buf *buf, const char* def, const char* val));
|
|
extern struct Buf *buf_m4_undefine PROTO((struct Buf *buf, const char* def));
|
|
extern struct Buf *buf_print_strings PROTO((struct Buf * buf, FILE* out));
|
|
extern struct Buf *buf_linedir PROTO((struct Buf *buf, const char* filename, int lineno));
|
|
|
|
extern struct Buf userdef_buf; /* a string buffer for #define's generated by user-options on cmd line. */
|
|
extern struct Buf defs_buf; /* a char* buffer to save #define'd some symbols generated by flex. */
|
|
extern struct Buf yydmap_buf; /* a string buffer to hold yydmap elements */
|
|
extern struct Buf m4defs_buf; /* Holds m4 definitions. */
|
|
extern struct Buf top_buf; /* contains %top code. String buffer. */
|
|
|
|
/* For blocking out code from the header file. */
|
|
#define OUT_BEGIN_CODE() outn("m4_ifdef( [[M4_YY_IN_HEADER]],,[[")
|
|
#define OUT_END_CODE() outn("]])")
|
|
|
|
/* For setjmp/longjmp (instead of calling exit(2)). Linkage in main.c */
|
|
extern jmp_buf flex_main_jmp_buf;
|
|
|
|
#define FLEX_EXIT(status) longjmp(flex_main_jmp_buf,(status)+1)
|
|
|
|
/* Removes all \n and \r chars from tail of str. returns str. */
|
|
extern char *chomp (char *str);
|
|
|
|
/* ctype functions forced to return boolean */
|
|
#define b_isalnum(c) (isalnum(c)?true:false)
|
|
#define b_isalpha(c) (isalpha(c)?true:false)
|
|
#define b_isascii(c) (isascii(c)?true:false)
|
|
#define b_isblank(c) (isblank(c)?true:false)
|
|
#define b_iscntrl(c) (iscntrl(c)?true:false)
|
|
#define b_isdigit(c) (isdigit(c)?true:false)
|
|
#define b_isgraph(c) (isgraph(c)?true:false)
|
|
#define b_islower(c) (islower(c)?true:false)
|
|
#define b_isprint(c) (isprint(c)?true:false)
|
|
#define b_ispunct(c) (ispunct(c)?true:false)
|
|
#define b_isspace(c) (isspace(c)?true:false)
|
|
#define b_isupper(c) (isupper(c)?true:false)
|
|
#define b_isxdigit(c) (isxdigit(c)?true:false)
|
|
|
|
/* return true if char is uppercase or lowercase. */
|
|
bool has_case(int c);
|
|
|
|
/* Change case of character if possible. */
|
|
int reverse_case(int c);
|
|
|
|
/* return false if [c1-c2] is ambiguous for a caseless scanner. */
|
|
bool range_covers_case (int c1, int c2);
|
|
|
|
/*
|
|
* From "filter.c"
|
|
*/
|
|
|
|
/** A single stdio filter to execute.
|
|
* The filter may be external, such as "sed", or it
|
|
* may be internal, as a function call.
|
|
*/
|
|
struct filter {
|
|
int (*filter_func)(struct filter*); /**< internal filter function */
|
|
void * extra; /**< extra data passed to filter_func */
|
|
int argc; /**< arg count */
|
|
const char ** argv; /**< arg vector, \0-terminated */
|
|
struct filter * next; /**< next filter or NULL */
|
|
};
|
|
|
|
/* output filter chain */
|
|
extern struct filter * output_chain;
|
|
extern struct filter *filter_create_ext PROTO((struct filter * chain, const char *cmd, ...));
|
|
struct filter *filter_create_int PROTO((struct filter *chain,
|
|
int (*filter_func) (struct filter *),
|
|
void *extra));
|
|
extern bool filter_apply_chain PROTO((struct filter * chain));
|
|
extern int filter_truncate (struct filter * chain, int max_len);
|
|
extern int filter_tee_header PROTO((struct filter *chain));
|
|
extern int filter_fix_linedirs PROTO((struct filter *chain));
|
|
|
|
|
|
/*
|
|
* From "regex.c"
|
|
*/
|
|
|
|
extern regex_t regex_linedir, regex_blank_line;
|
|
bool flex_init_regex(void);
|
|
void flex_regcomp(regex_t *preg, const char *regex, int cflags);
|
|
char *regmatch_dup (regmatch_t * m, const char *src);
|
|
char *regmatch_cpy (regmatch_t * m, char *dest, const char *src);
|
|
int regmatch_len (regmatch_t * m);
|
|
int regmatch_strtol (regmatch_t * m, const char *src, char **endptr, int base);
|
|
bool regmatch_empty (regmatch_t * m);
|
|
|
|
/* From "scanflags.h" */
|
|
typedef unsigned int scanflags_t;
|
|
extern scanflags_t* _sf_stk;
|
|
extern size_t _sf_top_ix, _sf_max; /**< stack of scanner flags. */
|
|
#define _SF_CASE_INS 0x0001
|
|
#define _SF_DOT_ALL 0x0002
|
|
#define _SF_SKIP_WS 0x0004
|
|
#define sf_top() (_sf_stk[_sf_top_ix])
|
|
#define sf_case_ins() (sf_top() & _SF_CASE_INS)
|
|
#define sf_dot_all() (sf_top() & _SF_DOT_ALL)
|
|
#define sf_skip_ws() (sf_top() & _SF_SKIP_WS)
|
|
#define sf_set_case_ins(X) ((X) ? (sf_top() |= _SF_CASE_INS) : (sf_top() &= ~_SF_CASE_INS))
|
|
#define sf_set_dot_all(X) ((X) ? (sf_top() |= _SF_DOT_ALL) : (sf_top() &= ~_SF_DOT_ALL))
|
|
#define sf_set_skip_ws(X) ((X) ? (sf_top() |= _SF_SKIP_WS) : (sf_top() &= ~_SF_SKIP_WS))
|
|
extern void sf_init(void);
|
|
extern void sf_push(void);
|
|
extern void sf_pop(void);
|
|
|
|
|
|
#endif /* not defined FLEXDEF_H */
|